RE: [microblaze-uclinux] ftp hang

["Yuan Song" <Yuan.Song@xxxxxxxxxxxxxxx>]

Does anybody know why the cache pages do not get cleaned up automatically?

Yuan

-----Original Message-----
From: owner-microblaze-uclinux@xxxxxxxxxxxxxx
[mailto:owner-microblaze-uclinux@xxxxxxxxxxxxxx] On Behalf Of Dr. Johann
Pfefferl
Sent: Friday, August 01, 2008 3:17 AM
To: microblaze-uclinux@xxxxxxxxxxxxxx
Subject: Re: [microblaze-uclinux] ftp hang

Hello,

do get rid of the caches again, you can do the following

echo 1 > /proc/sys/vm/drop_caches

In the directory /proc/sys/vm there are a number of files which allow
the tuning of the VM subsystem of the kernel.

Hope this helps,
  Hans

Yuan Song <Yuan.Song@xxxxxxxxxxxxxxx> wrote:
> When I ftp 1000 files, it can hang the system.  The cached file pages
never
> got released. Eventually the system goes out of memory. Does anybody know
> why? How can I force the caches files pages to be released.
> 
> MemTotal:       255176 kB
> MemFree:          4696 kB
> Buffers:           420 kB
> Cached:         199920 kB
> SwapCached:          0 kB
> Active:          16808 kB
> Inactive:       183504 kB
> SwapTotal:           0 kB
> SwapFree:            0 kB
> Dirty:               0 kB
> Writeback:           0 kB
> AnonPages:           0 kB
> Mapped:              0 kB
> Slab:            49444 kB
> SReclaimable:    23168 kB
> SUnreclaim:      26276 kB
> PageTables:          0 kB
> NFS_Unstable:        0 kB
> Bounce:              0 kB
> CommitLimit:    127588 kB
> Committed_AS:        0 kB
> VmallocTotal:        0 kB
> VmallocUsed:         0 kB
> VmallocChunk:        0 kB
> 
> 
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